CN208234025U - Endowed detection all-in-one machine inside and outside metal crown plug - Google Patents

Abstract

Endowed detection all-in-one machine inside and outside a kind of metal crown plug, storing unit (1), wind including successively coupling send unit (2), riko cover unit (3), carve code unit (4) and sub-material unit (5)；Each unit is electrically coupled to electric control unit (6) respectively；The bottle cap transport mechanism (43) for carving code unit includes a pair of of the magnetic bar and a pair of conveyor belts (433) of transmission bracket (431), energy adsorbing metal lid；A pair of conveyor belts is looped around spaced apart from each otherly on two rotating wheels at conveyor frame both ends；The pair of magnetic bar is mounted between two driving wheels of transport mechanism, is coated respectively by feed belt；Two laser marking heads of laser assembly are located at feed belt two sides up and down, the same region of spacing between described two feed belt rings of laser marking head face.The beneficial effects of the utility model are: realizing inside and outside while endowed when endowed equipment produces metal crown plug, detection rejecting integration.

Description

Endowed detection all-in-one machine inside and outside metal crown plug

Technical field

The stamp equipment that the utility model relates to make marks for metal material, more particularly to being beaten inside and outside metal crown plug Mark (endowed) detection integrated equipment.

Background technique

Marking equipment generally can only one side (such as outer surface) to metal crown plug bottle cap in mark at present (endowed) industry Mark is carried out, when endowed to bottle cap another side (such as inner surface) if necessary, then the bottle cap that complete to one side mark turn over Mark is carried out to another side again after turning, needs to increase the process and equipment of bottle cap overturning, increases production cost, influence production speed Degree.It is double that a kind of crown cap is disclosed in Chinese patent " crown cap double-sided marking device " (patent No. 2017208998212) Double-sided marking can be completed without overturning in face marking device, bottle cap, but is not able to satisfy inside and outside same bottle cap while assigning associated code Etc. be require.

Summary of the invention

Production one is designed the technical problem to be solved by the present invention is to avoid above-mentioned the deficiencies in the prior art place Endowed detection all-in-one machine inside and outside kind metal crown plug.

The technical solution that the utility model proposes to solve above-mentioned technical problem is: endowed inside and outside a kind of metal crown plug All-in-one machine is detected, storing unit, wind including successively coupling send unit, riko cover unit, carve code unit and sub-material unit；The storage Material unit, wind send unit, riko cover unit, quarter code unit and sub-material unit to be electrically coupled to electric control unit respectively；The quarter code The bottle cap transport mechanism of unit includes transmitting bracket, a pair of of magnetic bar connection of energy adsorbing metal lid and a pair of conveyor belts connection It connects；The feed belt, which couples, to be looped around spaced apart from each otherly on two rotating wheels at transmission bracket connection both ends；The magnetic force Stick is mounted between two driving wheels of transport mechanism connection with having spacing, is coupled by feed belt coat respectively, in transmission branch Magnetic force area is formed between the driving wheel of frame, the both ends of bottle cap transport mechanism are no magnetic force area；The laser group for carving code unit Part is located in bottle cap transport mechanism magnetic force area；Two laser marking heads of the laser assembly are located at feed belt or more Two sides, the same region of spacing between described two feed belts of laser marking head face.

More preferably, the quarter code unit includes two alignment code devices being mounted side by side on the rack；It is each to carve code device packet Include bottle cap transport mechanism, stepping separator, laser assembly, detection device, dust exhaust apparatus and device for eliminating；The stepping point From the feed belt side that device is mounted on bottle cap transport mechanism input terminal；The dust exhaust apparatus connection, laser assembly connection, inspection It surveys device and device for eliminating and is sequentially arranged at bottle cap transport mechanism side along the bottle cap direction of transfer of bottle cap transport mechanism.

More preferably, the storing unit includes hopper base, hopper, vibration motor component, hopper transfer passage and One material state inductor；The hopper is fixed in hopper base；The input port of the hopper transfer passage and feed hopper bottom Feed opening face；The delivery outlet face of the hopper transfer passage is located at the bottle cap input port that the wind under it send unit；It is described Vibration motor component couples hopper transfer passage；The first material state sensor connection is mounted under hopper connection At material mouth, the first material state sensor is electrically coupled to electric control unit.

More preferably, the sub-material unit includes sub-material chassis and the sub-material channel that is mounted on sub-material chassis, and sub-material is logical The entrance in road and the delivery outlet for carving code unit, the outlet face in sub-material channel are located at the body feed tank below sub-material chassis；Face object It is also equipped with trunkful inductor on the sub-material chassis of hopper, which is electrically coupled to connection electric control unit；It is described The exit in sub-material channel is equipped with the folding baffle for being controlled by stroke cylinder.

The more preferably described device for eliminating is between the detection device and sub-material unit, including rejects solenoid valve and blow Device and eliminating passage；The rejecting solenoid valve blowning installation is mounted on the feed belt fuselage of bottle cap transport mechanism；It is described Eliminating passage is fixed on the rack, and is located at feed belt fuselage side, the channel entrance of the eliminating passage and is mounted on transmission The gas nozzle of the rejecting solenoid valve blowning installation of the bracket other side is opposite；The rejecting solenoid valve blowning installation is electrically coupled to the electricity Gas control unit；Solenoid valve blowning installation is rejected in the connection of first photoelectric sensor.

Compared with the existing technology compared with the beneficial effects of the utility model are: it is raw to metal crown plug to realize endowed equipment Inside and outside while endowed when production, integration is rejected in detection, is realized metal crown plug production mark and is controlled monitoring automation in the process, The major technological breakthrough of magnetic positioning mark, can fast and effeciently improve production effect when realizing the production of metal crown plug producing line Rate has good economic benefit and practical value.

Detailed description of the invention

Fig. 1 is the axonometric projection of endowed detection all-in-one machine inside and outside metal crown plug in the preferred embodiment of the utility model Schematic diagram；

Fig. 2 is the axonometric projection schematic diagram of storing unit 1 in preferred embodiment；

Fig. 3 is the orthographic projection schematic cross-sectional view of storing unit 1 in preferred embodiment, and the arrow in figure indicates the movement of bottle cap Direction

Fig. 4 is the axonometric projection schematic diagram that preferred embodiment apoplexy send unit 2；

Fig. 5 is the orthographic projection schematic diagram for the air conveying device that preferred embodiment apoplexy send unit 2 and the enlarged diagram in the portion B;

Fig. 6 is the axonometric projection schematic diagram of riko cover unit 3 in preferred embodiment；

Fig. 7 is the orthographic projection schematic front view of the lid treatment device of riko cover unit 3 in preferred embodiment；

Fig. 8 is the orthographic projection main view schematic cross-sectional view of the lid treatment device of riko cover unit 3 in preferred embodiment；

Fig. 9 is the schematic top plan view of the lid treatment device of riko cover unit 3 in preferred embodiment；

Figure 10 is the axonometric projection schematic diagram that code unit 4 is carved in preferred embodiment；

Figure 11 is that axonometric projection schematic diagram when code unit 4 removes shield 4 is carved in preferred embodiment；

Figure 12 is the axonometric projection schematic diagram of the part of devices such as the bottle cap transport mechanism 43 that code device is carved in preferred embodiment；

Figure 13 is that diagram is cutd open in the orthographic projection in the portion C-C of Figure 12；

Figure 14 is the partial enlargement diagram of Figure 13, is shown between bottle cap transport mechanism, magnetic bar and transmitting belt in figure Structure, the down arrows in figure indicate the mark direction of laser marking head；

Figure 15 is the axonometric projection schematic diagram of sub-material unit in preferred embodiment；

Figure 16 is the orthographic projection schematic top plan view of sub-material unit in preferred embodiment.

Specific embodiment

In the following, the utility model is further described in the preferred embodiment in conjunction with shown in each attached drawing.

Referring to Fig. 1 to 16, the preferred embodiment of the utility model first is that design, produce it is endowed inside and outside a kind of metal crown plug All-in-one machine is detected, for metal crown plug, i.e. bottle cap 9 to carry out endowed and detection sorting；The all-in-one machine includes storing unit 1, wind send unit 2, riko cover unit 3, carves code unit 4, sub-material unit 5 and electric control unit 6, the output of the storing unit 1 End connection wind send the input terminal of unit 2；The wind send 2 output end of unit to couple 3 input terminal of riko cover unit；The riko cover The output end of unit 3 accesses the input terminal for carving code unit 4；The output end for carving code unit 4 couples the sub-material unit 5 Input terminal, the storing unit 1, wind send unit 2, riko cover unit 3, carves code unit 4 and sub-material unit 5 is electrically coupled to electricity respectively Gas control unit 6.

Referring to Fig. 1 to Fig. 3, the storing unit 1 is defeated including hopper base 11, hopper 12, vibration motor component 13, hopper Send channel 14 and first material state sensor 15；The hopper 12 is fixed in hopper base 11；The hopper transfer passage 14 input port and the feed opening face of 12 bottom of hopper, the institute that the delivery outlet face of the hopper transfer passage 14 is disposed below State the bottle cap input port 20 that wind send unit 2；The vibration motor component 13 is mounted on hopper transfer passage 14, drives hopper Transfer passage component 14 back and forth shakes, and the at the uniform velocity even amount of the bottle cap on hopper transfer passage 14 is delivered to the wind and send unit 2 bottle cap input port 20；The first material state sensor 15 is mounted at the feed opening of hopper 12, the first material state Inductor 15 is electrically coupled to electric control unit 6.

Referring to Fig. 1, Fig. 3 and Fig. 4, it includes two sets of air supply devices that the wind, which send unit 2, and each air supply device includes plastic bushing 21, air delivery pipe 22, air blower 23, blanking control assembly 24, photoelectric sensor 25, stroke cylinder 26；The air blower 23 is pacified On hopper base 11；The air outlet of air blower 23 is connected through plastic bushing 21 with air delivery pipe 22, in air outlet through plastics The connection place of casing 21 and air delivery pipe 22 is additionally provided with the bottle cap input port 20 of air delivery pipe；The air delivery pipe 22 it is another End couples blanking control assembly 24；The feeding inlet 30 of the discharge port face riko cover unit 3 of the blanking control assembly 24；It is described Blanking control assembly 24 is connect with stroke cylinder 26；Photoelectric sensor 25 is installed on lower hopper of blanking control assembly 24 or so two Side, and it is electrically coupled to electric control unit 6.

The riko cover unit 3 includes two sets of lid treatment devices, send two sets of air supply devices of unit to be adapted with wind, each riko cover dress It sets including riko cover fixed frame 31, conical centrifuge riko cover component 32, cylinder hopper 33, is centrifuged servo motor 34, positive and negative lid conversion Device 35, slideway 36 and inductive pick-up 37；The cylinder hopper 33 is fixed on 31 top surface of riko cover fixed frame, it is described cone from Psychological cover 32 is mounted in cylinder hopper 33, and 32 central axis of conical centrifuge riko cover component passes through riko cover fixed frame top Face is linked together with centrifugation servo motor 34, which drives conical centrifuge riko cover component 32 around its axle center Line rotation；At positive and negative 35 input terminal of lid converter connection, 33 lid outlet of cylinder hopper, the output end and cunning of positive and negative lid converter 35 The input terminal in road 36 couples；The bottle cap 9 send 24 discharge port of blanking control assembly of unit to enter 33 top cover of cylinder hopper by wind On feeding inlet 30, fall on the conical centrifuge riko cover component 32 in cylinder hopper 33；The centrifugation servo motor 34 drives The transhipment of conical centrifuge riko cover component 32 is dynamic；The metal crown plug is under the conical surface of the conical centrifuge riko cover component 32 of rotation It is sliding, and centrifugalization power enters its lid outlet and enters positive and negative lid turn with being thrown into 33 edge gateway of cylinder hopper, ordered arrangement Parallel operation 35, bottle cap 9 enter slideway 36 after positive and negative 35 conversion direction of lid converter is consistent, are transported to quarter code by 36 output end of slideway 4 conveyor belt input terminal of unit.

Referring to Figure 10 to Figure 14, the code unit 4 of carving includes two alignment code devices being mounted side by side in rack 42；It is each to carve Code device includes bottle cap transport mechanism 43, stepping separator 44, laser assembly 45, detection device 46,47 and of dust exhaust apparatus Device for eliminating 48；The biography that the stepping separator 44 conveyed one by one is mounted on 43 input terminal of bottle cap transport mechanism is separated for bottle cap Belt side is sent, the dust exhaust apparatus 47, laser assembly 45, detection device 46 and device for eliminating 48 are along bottle cap transport mechanism 43 Bottle cap direction of transfer be sequentially arranged at 43 side of bottle cap transport mechanism；Shield 4 by the other component cover in rack 42 in the inner； The electric control unit 6 is mounted on shield 4；The electrical part of each device is electrically coupled to electric control unit 6.

The bottle cap transport mechanism 43 includes transmission bracket 431, a pair of of magnetic bar 432 of energy adsorbing metal lid and a pair of of biography Send belt 433；The both ends of the transmission bracket 431 are equipped with driving wheel, and one of described driving wheel couples with transport motor 434； The pair of feed belt 433 is looped around spaced apart from each otherly on two rotating wheels of transmission bracket 431, by transmission motor 434 drives do detour rotation around transmission bracket 431；The pair of magnetic bar 432 is mounted on transport mechanism 43 spaced apart from each otherly Two driving wheels between, coated respectively by feed belt 433, transmission bracket 431 driving wheel between formed magnetic force area, bottle The both ends of lid transport mechanism 43 are no magnetic force area；Between between spacing H and two magnetic bars between two transmission skin 433 It is greater than the mark area of bottle cap away from L.

The laser assembly 45 is located in 43 magnetic force area of bottle cap transport mechanism；Two laser of the laser assembly 45 Labelling head 451 is located at about 433 two sides of feed belt, between described two feed belts 433 of laser marking head face between Away from same region, i.e. two laser marking heads can upper and lower faces for the same bottle cap on feed belt 433 it is endowed simultaneously (mark).

The dust exhaust apparatus 47 and detection device 46 are sequentially arranged at the bottle cap between laser assembly and device for eliminating 48 In transport mechanism 43；The device for eliminating 48 is between the detection device 46 and sub-material unit 5, including rejects solenoid valve and blow Device of air 421 and eliminating passage 426；The transmission skin rejected solenoid valve blowning installation 421 and be mounted on bottle cap transport mechanism 43 On band fuselage；The eliminating passage 426 is fixed in rack 42, is located at feed belt fuselage side, the eliminating passage 426 Channel entrance is opposite with transmission rejecting solenoid valve 421 gas nozzles of blowning installation of 431 other side of bracket are mounted on；The rejecting electromagnetism Valve blowning installation 421 is electrically coupled to electric control unit 6；Solenoid valve blowning installation 421 is rejected in the connection of first photoelectric sensor；Institute The input terminal for stating bottle cap transport mechanism 43 couples with the output end of stepping separator 44, installs in the bottle cap transport mechanism 43 Second photoelectric sensor 482, second photoelectric sensor 482 are electrically connected with laser assembly 45；In bottle cap transport mechanism 43 On be also equipped with rotary encoder, which electrically connects with laser assembly 45, the detection device 46 include industry The fixed bracket of camera, light source, detection device and detection sensor；The industrial camera and light source are mounted on the fixed branch of detection device On frame, the fixed bracket of detection device is mounted on the transmission bracket side of the bottle cap transport mechanism 43, is located at the laser assembly Between defective products device for eliminating；The feed belt of the camera lens face transmission bottle cap of the industrial camera；The third photoelectric transfer Sensor 483 is mounted on feed belt fuselage, positioned at the industrial camera camera lens lower section and laser marking head immediately below pass It send between belt；The third photoelectric sensor 483 is electrically connected with industrial camera and electric control unit 6.

Referring to Figure 15 and Figure 16, the sub-material unit 5 includes sub-material chassis 52 and be mounted on sub-material chassis two points Expect channel 51, the entrance in each sub-material channel couples with the delivery outlet for carving code unit, and the outlet face in each sub-material channel, which is located at, divides Expect the body feed tank under chassis 52；It is also equipped with trunkful inductor 53 on the sub-material chassis 52 of face body feed tank, the trunkful inductor 53 are electrically coupled to electric control unit 6；The exit in the sub-material channel is equipped with the folding baffle for being controlled by stroke cylinder.

The course of work of endowed detection all-in-one machine is as follows inside and outside the metal crown cork:

It is defeated to drop into material bin by the opening of 12 bottom of hopper by entering in hopper 12 above 1 hopper of storing unit for bottle cap It send on channel, the vibration motor driving hopper transfer passage 14 back and forth shakes, and the at the uniform velocity even amount of bottle cap is along hopper transfer passage 14 conveying directions slide to wind and send in unit 2 in air delivery pipe 22；First material state sensor is mounted on hopper 12 and opens The feed opening two sides of mouth middle；The first material state sensor is electrically coupled to electric control unit, controls vibration motor Velocity of vibration, regulated the speed size according to actual production situation, material stores appropriate protective effect, i.e., when bottle cap quantity conveys More than certain proportion, material inductor notifies electric control unit 6 to suspend bottle cap supply.

Wind send 23 wind-force of air blower of unit 2, and the bottle cap in air delivery pipe 22 is sent to lower hopper along air delivery pipe 22 In control assembly 24, when 24 two sides photoelectric sensor of lower hopper control assembly detects that bottle cap quantity meets, electrical control row Stroke cylinder 26 opens lower hopper control assembly 24, while notice couples the work of vibration motor together with hopper transfer passage 14, Bottle cap is set to keep the lasting output of amount；The pan feeding that bottle cap send 24 discharge port of unit lower hopper control assembly to fall into riko cover unit by wind Mouth 30.

The bottle cap is entered in cylinder hopper by feeding inlet 30, is fallen on the conical centrifuge riko cover component 32 of rotation；Object Material state sensor 37 is mounted at the symmetrical two sides of 33 circumference of cylinder hopper；Material state inductor 37 is electrically coupled to electrically Control unit 6 controls 32 velocity of rotation of conical centrifuge riko cover component, is regulated the speed size according to actual production situation, material Appropriate protective effect is stored, i.e., when the conveying of bottle cap quantity is more than certain proportion, material inductor notifies electric control unit 6 to suspend The supply of 24 bottle cap of lower hopper control assembly, bottle cap enter cylinder material along cylinder hopper edge gateway ordered arrangement through operating on centrifugal force The lid outlet of bucket, through positive and negative lid converter be converted to direction it is consistent after enter slideway 37, by 37 output end of slideway send to carve code list In the conveyor belt of the input terminal of the bottle cap transport mechanism 43 of member.

Bottle cap enters stepping separator 44 with conveyor belt, and bottle cap is arranged by rotation speed frequency dividing, the bottle cap after frequency dividing Into the magnetic force area of transmission device, is adsorbed by the magnetic bar 204 below feed belt and transmitted stationaryly with feed belt 202 Direction transmitting, by triggering the first photoelectric sensor 25 when laser assembly 45, the first photoelectric sensor 25 passes to signal Signal is passed to laser assembly 45 by electric control unit 6, electric control unit 6, drives two laser marking heads pair up and down Simultaneously, dust exhaust apparatus 47 adsorbs mark dust to same bottle cap upper and lower surface in time, and the bottle cap after mark is along the feed belt side of moving To moving backward, after testing when 46 the second photoelectric sensor 482 of lower section of device, constantly triggers industrial camera and take pictures, detection dress It sets 46 and the transmitting display of product photo information is stored in electric control unit 6, electric control unit 6 passes substandard product signal Device for eliminating 48 is passed, substandard product is constantly blown into eliminating passage 426, bottle cap transport mechanism 43 passes qualified products backward It send, after stamp, detection, rejecting process, two sides is endowed inside and outside completion bottle cap, constantly in 43 output end of bottle cap transport mechanism Trigger third photoelectric sensor 483, third photoelectric sensor 483 constantly by bottle cap quantity the accurate transmission to electric control unit 6, Timely record product quantity information, bottle cap enter sub-material unit 5 after entering the input terminal without magnetic region of bottle cap transport mechanism 43.

Bottle cap is fallen into body feed tank by the sub-material channel 51 of sub-material unit 5, when bottle cap quantity reaches setting trunkful quantity, Trunkful indicator light lights prompt in corresponding trunkful inductor 53, while 26 action control of stroke cylinder folding baffle is closed sub-material Channel 51 makes in bottle cap sub-material channel 51, and electric control unit 6 setting operation personnel can change the case time according to actual needs, letter Folk prescription is just.

Obviously, the quarter code unit in this example is provided with two alignment code devices, can according to need, installs one in rack 42 Set or more alignment code devices, only need to increase or decrease correspondingly wind send the air conveying device of unit 2, the lid treatment device of riko cover unit 3 and sub-material The equal quantity in the sub-material channel 51 of unit 5, technical solution basis, is aobvious to those skilled in the art disclosed in the present embodiment And be clear to, which is not described herein again.

Endowed equipment is realized disclosed in the present embodiment simultaneously to endowed detection one simultaneously inside and outside the bottle caps such as metal crown plug Body especially meets the demand that associated code prints inside and outside same bottle cap, fast and effeciently improves production efficiency.

Claims (5)

1. endowed detection all-in-one machine inside and outside a kind of metal crown plug, storing unit (1), wind including successively coupling send unit (2), Riko cover unit (3) carves code unit (4) and sub-material unit (5)；The storing unit (1), wind send unit (2), riko cover unit (3), It carves code unit (4) and sub-material unit (5) is electrically coupled to electric control unit (6) respectively；It is characterized by:

The quarter code unit (4) includes bottle cap transport mechanism (43), and the bottle cap transport mechanism includes transmission bracket (431), energy A pair of of the magnetic bar (432) and a pair of conveyor belts (433) of adsorbing metal lid；The feed belt (433) is spaced apart from each otherly It is looped around on the rotating wheel at transmission bracket (431) both ends；The magnetic bar (432) is mounted on transport mechanism (43) with having spacing It between two driving wheels, is coated respectively by feed belt (433), forms magnetic force area between the driving wheel of transmission bracket (431), The both ends of bottle cap transport mechanism (43) are no magnetic force area；

The laser assembly (45) for carving code unit (4) is located in bottle cap transport mechanism (43) magnetic force area；The laser group Two laser marking heads (451) of part (45) are located at feed belt (433) two sides up and down, the laser marking head face two The same region of spacing between a feed belt (433).

2. endowed detection all-in-one machine inside and outside metal crown plug described in accordance with the claim 1, it is characterised in that:

Described carve code unit (4) include two alignment code devices being mounted side by side on rack (42)；Each quarter code device includes Bottle cap transport mechanism (43), stepping separator (44), laser assembly (45), detection device (46), dust exhaust apparatus (47) and Device for eliminating (48)；The stepping separator (44) is mounted on the feed belt side of bottle cap transport mechanism (43) input terminal, institute Dust exhaust apparatus (47), laser assembly (45), detection device (46) and device for eliminating (48) are stated along bottle cap transport mechanism (43) Bottle cap direction of transfer is sequentially arranged at bottle cap transport mechanism (43) side.

3. endowed detection all-in-one machine inside and outside metal crown plug described in accordance with the claim 1, it is characterised in that:

The storing unit (1) includes hopper base (11), hopper (12), vibration motor component (13), hopper transfer passage (14) and first material state sensor (15)；The hopper (12) is fixed in hopper base (11)；The hopper conveying is logical The input port in road (14) and the feed opening face of hopper (12) bottom；The delivery outlet face of the hopper transfer passage (14) is located at The wind below send the bottle cap input port (20) of unit (2)；The vibration motor component (13) couples hopper transfer passage (14) on；The first material state sensor (15) is mounted at the feed opening of hopper (12), the first material shape State inductor (15) is electrically coupled to electric control unit (6).

4. endowed detection all-in-one machine inside and outside metal crown plug described in accordance with the claim 1, it is characterised in that:

The sub-material unit (5) includes sub-material chassis (52) and the sub-material channel (51) being mounted on sub-material chassis, sub-material channel Entrance with carve code unit delivery outlet couple, the outlet face in sub-material channel is located at the body feed tank below sub-material chassis (52)； Trunkful inductor (53) are also equipped on the sub-material chassis (52) of face body feed tank, which is electrically coupled to electrically Control unit (6)；The exit in the sub-material channel is equipped with the folding baffle for being controlled by stroke cylinder.

5. endowed detection all-in-one machine inside and outside metal crown plug according to claim 2, it is characterised in that:

The device for eliminating (48) is between the detection device (46) and sub-material unit (5), including rejects solenoid valve and blow Device (421) and eliminating passage (426)；Rejecting solenoid valve blowning installation (421) is mounted on bottle cap transport mechanism (43) It transmits on bracket；The eliminating passage (426) is fixed on rack (42), is located at feed belt fuselage side, and the rejecting is logical The channel entrance in road (426) and rejecting solenoid valve blowning installation (421) the gas nozzle phase for being mounted on transmission bracket (431) other side It is right；The rejecting solenoid valve blowning installation (421) is electrically coupled to the electric control unit (6)；The connection of first photoelectric sensor It rejects solenoid valve blowning installation (421).